Washing machine



June 15, 1943. 'r. B. cHAcE i 2,321,573

` WASHING MACHINE Filed Dec; 25, 1940 .9 f. r- }3 7 8 972,94 l 7 7 A yr 70 if ,n a -.r

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Patented .lune l5, i943 WASHING Mscnms Thomas B. Chase, Winnctka,r Ill., assignor to The Dole Valve Company, Chicago, lli., a corpora tion oi' Illinois appucmonnecember 23,1s4`o, serial No. 371,339

s claims. (ci. ss-zon This invention relates to washing machines and has for its object to provide a new and improved machine of this description. The invention hasv as a further object to provide a washing machine wherein the same amount of water will be admitted to the washing machine v at every operation and independent of the pressure of the water.

The invention has further oblects which are more particularly pointed out in the accompanying description.

Referring now to the drawing.

Fig. 1 is a side elevation of one form of washthe several figures.

In the construction shown there `is illustrated a washing machine I having a suitable casing 2 with any suitable apparatus s for agitating the water and the clothes to be washed. There is a cover 4 through which the'clothes are inserted and removed from the machine..

Hot and cold water are mixed together an'd inserte'd in the washing machine. Some suitable mixing valve for mixing the hot andeold' water mounted a thermostat I9. This thermostat ls illustrated as a coiled bimetal thermostat having one end connected to the member 2li. The other end passes through the opening Il and is connected to the valve device. As herein shown it is loosely connected with the intermediate valve member i5. The thermostat I! and the valve device regulate the amount of hot and cold water admitted. so as to secure the desired temperature of the water that passes into the washing -machine. The thermostat I9 being immersed in the mixed hot and cold water. acts to move the valve members in one direction to decrease the eiiective area of the hot water ports and increase the eective area of the cold water ports when the temperature rises above a predetermined point, and to move said valve members to decrease the eiiective area oi the cold water' ports and increase the eiiective area of the hot water ports when the temperature of the waterfalls below a predetermined point.

Some means is provided for automatically delivering the same amount of water to the washing'machine in any giveninterval oi time, re.-v

gardless of variations in pressure oi the entering water. As herein shown there is provided such a device attached to the mixing valve. It comprises a casing 2| attached to the casing I of thev mixing valve. Within this casing is a tube ,22 nxed in position and as herein shown it vis connected with the casing 5 of the mixing valve. This tube is hollow and is open at the end nearest f the mixing valve and is connected with the outlet is provided. The mixing valve herein shown is v provided with a casing t having a cover i fastened in position by the fastening devices Lv The hot and cold water enter this casing through the inlets 8 and 9, which are connected to suitable sources oi hot and cold water. Withinzthe casing is a chamber IB with /which the inlet 9 is connected and a chamber II with which the inlet 8 is connected. Each of these chambers has two ports, all of the ports being in alignment, as`

shown in Fig. 2. These ports are controlled by a suitable valve construction which `as herein shown comprises a shaft I2 having valve mem'- bers I3 and il at the ends thereof and an intermediate valve member Ilwhich is located between the two chambers il and Il nd controls the opposed ports in these two chambers. the single valve member controlling both ports.

There is preferably a suitable mixing chamber IB in the lcasing 5 which is providedl with an outlet i1 through which the mixed hot and cold water passes 'into the chamber Il in which is 2l o t the mixing valve. This tube is provided with one -or more discharge openings 24 and preferably has a closed end 25. Some means is provided for automatically Vervins the size of thedischarge opening or openings 2 4 responsive to variations inthe pressure oi the water. As herein shown thisresult is secured by providing a tube 20 surrounding the tubell. The tube 2l,

is connected witha. movable water receptacle 2.1 which has an outlet RIAA 'spring II engages a nxed part of the casing 2| at one end and the water receptacle 21 atv the other end, there being preferably a laterally extending rim Il on the receptacle 21 engaged by the spring. The casing 2l is provided with a suitable outlet ll through which the mixed hot and cold water is discharged into the washing machine.

When the water passes from the mixing valve through the tube 22 into the receptacle 21.- the pressure of the wateracts to move the receptacle 2l and the tube 2i downwardly in opposition to thevspring 29 and as the tube It moves downthe same amount of water therethrough and out the outlet 3l into the washing machine, regardless of the pressure or the variations in pressure of the water entering andA passing through the mixing valve.

There is an electromagnetically controlled valve 32 in the connection 33 leading from the mixing valve to the interior of the washing machine for the purpose of ,opening or closing this connection to admit or shut oiI water from the' washing machine. This valve 32 is controlled by a time switch 34 of any usual construction, preferably located on the washing machine, and which is electrically connected with an electromagnetic device, such as the solenoid 35, the solenoid being connected with the valve so that when'it is energized the valve will be opened, and when it is de-energized, the valve will be closed. The time switch is connected to the solenoid 35 and the source of electric supply through the agency of the conductors 3i and 31. .The water is withdrawn from the washing machine by means o! a pump 38 through a pipe 33 and is discharged through a pipe 40. The pump is actuated by a suitable motor 4l. 'This motor also drives by means of a belt 42, the agitating apparatus 3 in the washing machine.

I claim: i

i. A washing machine comprising a casing into When the pressure dewhich the material to be washedis placed, a mixing valve for mixing hot and cold water to be inserted in said casing, and an automatic iiow control device connected with the mixing valve, the flowcontrol device and the mixing valve forming a unitary construction for delivering equal amounts of water to the casing in equal intervals of time. I

2. A'washing machine comprising a casing into which the material to be washed is placed, a mixing device for mixing water of diierent temperatures and at diierent pressures, means connected with the outlet of the mixing device lfor delivering the mixed water to said washing machine casing in equal amounts in equal intervals of time, regardless of the variation in pressure of said water. and automatic means for shutting ott the flow of water to the washing machine casing when a predetermined amount pressure controlled valve device lfor deliveringV equal amounts of mixed water to ithe washing machine casing in equal ,intervals of time, regardless of the variations. in pressure of the water in the valve casing, said means and said valve forming a unitary device, a valve for controlling the passage of the water into said washing machine casing, and means for automatically y controlling said valveso as to automatically shut oi the ow of water-into the washing machine casing after a predetermined amount of water hasibeen delivered to the washing machine casing.

' THOMAS B. CHACE. 

